JP5558031B2 - Spout container cap - Google Patents

Description

  The present invention relates to a cap that is used by being attached to a push-down head type liquid ejection container with a nozzle. In particular, the present invention is intended to prevent erroneous liquid leakage due to an erroneous operation when the cap is attached.

  As the liquid ejection container, a pump head is provided on the upper part of the container body containing the liquid, and the liquid in the container body is sucked up by moving the pump head up and down and ejected from a nozzle protruding from the pump head. Things are known. In this type of container, it is common to install a pump misoperation prevention mechanism so that the pump head is not operated excessively and the liquid contents are not accidentally leaked during transportation before delivery to the final purchaser or during store display. Is.

  As such a pump erroneous operation prevention mechanism, for example, Patent Document 1 proposes a cap that is fitted to the container body and covers the pump head. According to this, in the cap attachment state, the pump head cannot be pushed down, and therefore it is possible to reliably prevent erroneous leakage of the content liquid due to a pump malfunction.

Japanese Patent Laid-Open No. 11-43165

  However, as shown in FIG. 1 (a), the cap of the conventional structure is attached to the ejection container so that the directions of the pump head 1 and the cap 2 are aligned, that is, protruded from the front half of the pump head 1. After aligning the position of the nozzle covering portion provided on the cap 2 with the nozzle 3, it is necessary that the axis X 1 of the cap 2 is aligned with the axis X 2 of the pump head 1. At this time, even if there is a slight deviation between the two directions, the longitudinal groove functions as a guide and can guide the cap 2 to the correct position. However, as shown in FIG. If X2 does not match, there is a problem that the nozzle covering portion contacts the nozzle or the vertical groove of the cap contacts the nozzle 3 and pushes them down, resulting in erroneous leakage of the content liquid.

  Accordingly, an object of the present invention is to solve such problems of the prior art, and the object of the present invention is to ensure that the content liquid is securely attached at the time of and after the attachment while the structure is simple. An object of the present invention is to provide a cap as a mechanism for preventing erroneous operation of a pump that can prevent erroneous leakage.

In order to achieve the above-mentioned object, according to the present invention, the pump head provided at the upper part of the container body is pushed down, so that the content liquid contained in the container body is ejected from the nozzle protruding from the front half of the pump head. A spout container cap that is mounted on a container that makes it impossible to push down the pump head, and the cap surrounds the pump head and is provided with a longitudinal groove for inserting the nozzle. A top wall portion integrally connected to an upper end portion of the peripheral wall portion, a nozzle covering portion protruding from a side above the longitudinal groove of the peripheral wall portion and covering the nozzle in a mounted state on the container, and the top wall comprising a plurality of longitudinal ribs provided vertically from the inner surface of the part, Ri Na provided the longitudinal ribs on both sides near the longitudinal groove of at least the peripheral wall portion, wherein the longitudinal ribs, against the axis of the pump head Functions as a guide for the axis of the cap, the longitudinal ribs at the mounted state of the container, a jet container cap, characterized in that extending beyond the lower end of the nozzle. By adopting such a configuration, even if the cap is attached in a state where the direction of the cap is deviated from the direction of the pump head or the axis of the cap does not coincide with the axis of the pump head, Since the vertical rib functions as a guide for guiding the cap in the correct direction, the pump is not pushed down by mistake. Further, the vertical rib fills a gap formed between the peripheral wall portion and the pump head, and suppresses the movement of the cap in the front-rear direction after being mounted on the container.

In such caps, in the mounted state of the container, the longitudinal ribs extend beyond the lower end of the nozzle, and more preferably extending over more than one-third of the length of the cap height. Thereby, the direction of the cap relative to the pump head can be corrected from an early stage of cap attachment.

Further, it is assumed that the second half portion of the top wall portion, further provided with a pair of longitudinal ribs. Thereby, it is possible to correct the displacement of the cap in the front-rear direction. In this specification, the “front half” of the pump head and the cap refers to the half on the side where the nozzle or the vertical groove is provided in the plan view, and the “second half” is the opposite side. The half of

Thus it shall be placed before the second half portion of each pair of vertical ribs provided in Rutotomoni, the lower end of the vertical rib provided in the latter part than the longitudinal ribs of the lower end provided on the front half portion on the lower side.

  According to the present invention, although it has a simple structure in which vertical ribs are vertically provided on the inner surface of the top wall portion, it functions as a guide when the cap is attached, thereby reliably preventing erroneous leakage of the content liquid. It becomes possible. Moreover, since the longitudinal rib suppresses the movement in the front-rear direction after mounting, it is possible to prevent the cap from being detached due to light vibration or impact.

(A) is a top view of the cap for ejection containers by a prior art, (b) is the schematic which shows the attachment process to the container of the cap shown to (a). It is a plan view showing the ejection container cap is a reference example of the present invention. It is a longitudinal cross-sectional view which shows the process in which the cap shown in FIG. 2 is attached to the upper part of a container. The attachment state to the container of the cap shown in FIG. 2 is shown, (a) is a longitudinal cross-sectional view, (b) is a front view. The cap for jet containers which is a reference example of this invention is shown, (a) is a top view, (b) is a longitudinal cross-sectional view. The present invention shows an embodiment of a jet container cap according, (a) is a plan view, (b) is a longitudinal sectional view.

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 2 to 4 show an embodiment of a cap for an ejection container which is a reference example of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a longitudinal cross-sectional view showing a state when the cap is attached to the ejection container. 4 (a) is a longitudinal sectional view in the mounted state, and FIG. 4 (b) is a front view in the mounted state.

  The cap 10 according to the present invention is attached to an ejection container composed of a container body (not shown) containing a liquid therein and a pump head 1 provided on the top thereof. This is to prevent leakage. When the pump head 1 is pushed downward in FIG. 3, the ejection container sucks up the content liquid in the container body, and the content liquid from the nozzle 3 protruding in front of the pump head 1, that is, to the left of FIGS. The structure is not particularly limited, and any structure may be used as long as it is employed in this type of conventional spray container with a cap.

  For example, a cylinder with a suction valve fixed in a state where the lower part of the cylinder is suspended in the container, a suction pipe with the upper end connected to the lower end of the cylinder, and a lower end depending on the lower part of the container, and the inner circumference of the cylinder The upper end of the stem, which is linked to the outer periphery of the lower part of the slidably fitted annular piston, is urged upward by a coil spring, etc., so that it can be moved up and down, and the pump head is fitted to the upper end. The thing provided with the fixed up-and-down moving member and the discharge valve provided in the stem is mentioned. Then, the liquid in the cylinder pressurized by pushing down the pump head passes through the stem, opens the discharge valve, and ejects from the nozzle. When the pump head stops being pushed down, the pump head rises due to the action of the coil spring. Then, the inside of the cylinder becomes negative pressure, the discharge valve is closed, the suction valve is opened, the liquid in the container is sucked up, and introduced into the cylinder through the pipe.

  The cap 10 surrounds the pump head 1 and has a peripheral wall portion 12 provided with a vertical groove 11 (see FIG. 4B) for inserting and inserting the nozzle 3, and an upper end of the peripheral wall portion 12. A top wall portion 13 that is integrally connected to the portion, and a nozzle covering portion 14 that protrudes laterally from above the longitudinal groove 11 of the peripheral wall portion 12 and covers the nozzle 3 when mounted on the container. Further, from the inner surface 15 of the front half portion 18 of the top wall portion 13, a pair of vertical ribs 16 are provided in the vicinity of both sides of the vertical groove 11 of the peripheral wall portion 12, that is, at a position sandwiching the nozzle 3 of the pump head 1 in the mounted state. Is suspended. On the other hand, the lower part of the pump head 1 has an outer diameter slightly larger than the outer diameter of the cap 10, and is substantially the same as the inner diameter of the cap 10 raised from the mounting cap portion mounted on the container body and the flange of the mounting cap. The up-and-down moving member is arranged on the upright portion.

  When the user attaches the cap 10 to the ejection container, it is necessary to first match the direction of the pump head with the direction of the cap. The nozzle 3 is provided in the front half of the pump head 1 and the front half 18 of the cap 10 is provided. Nozzle covering portions 14 are respectively provided so as to easily match the direction of the pump head and the direction of the cap by matching these positions. When the cap 10 is moved downward toward the container body, the nozzle 3 of the pump head 1 is inserted into the vertical groove 11 of the cap 3, and this vertical groove 11 functions as a guide for mounting the cap 10. Even if there is a slight misalignment between the head 1 and the cap 10, it can be guided to the correct position. As shown in FIG. 3, after the lower ends 20 of the vertical ribs 16 reach the top of the pump head 1, the vertical ribs 16 function as a guide for the axis of the cap 10 with respect to the axis of the pump head 1, that is, the pump Even if attachment is performed in a state where the axis of the cap 10 is inclined with respect to the axis of the head 1, this inclination is corrected as the attachment is advanced, and finally both axes coincide with each other. When the mounting is further advanced, the peripheral wall portion 12 of the cap 10 is fitted to the outer periphery of the standing portion of the mounting cap, and the lower end portion of the cap 10 is seated on the flange of the mounting cap, and the mounting is completed. During this attachment, no force is applied to push down the pump head 1 by the covering portion 14 of the cap 10, so that the pump is not pushed down by mistake. Moreover, after attaching to a container, it functions similarly to the cap of a prior art. For this reason, it can function as a reliable pump misoperation prevention mechanism both at the time of attachment and after attachment.

  In addition, when the height of the standing portion of the mounting cap is set low, the contact area (fitting portion) with the cap 10 may be reduced, and the fitting strength between the standing portion and the cap may be weakened. In the cap 10 of the present invention, since the vertical rib 16 is provided so as to fill the gap between the peripheral wall portion 12 and the upper portion of the pump head, this abuts against the pump head 1 to suppress the swing and rotation of the cap. Therefore, the cap can be effectively prevented from coming off.

  The cap 10 can be formed of an arbitrary material, and the vertical rib 16 can be formed integrally with the top wall portion 13 or can be attached with another member. It is preferable that the peripheral wall part 11, the top wall part 12, the nozzle coating part 14, and the vertical ribs 16 are integrally formed. Thereby, the structure of the cap can be simplified.

  Further, in order for the vertical rib 16 to function as a guide, it is necessary for the lower end 20 of the vertical rib 16 to be below the upper end of the pump head 1 in the state of being mounted on the container. From the standpoint of enhancing, it is preferable that this extends downward beyond the lower end 17 of the nozzle 3. More preferably, the distance L from the upper end of the cap 10 to the lower end 20 of the vertical rib 16 is preferably 1/3 or more of the height H of the cap. Comes into contact with the pump head 1 and correction of the direction of the cap with respect to the pump head is performed, so that erroneous operation of the pump can be prevented more reliably.

FIG. 5 shows a reference example of the present invention. In this embodiment, in addition to a pair of vertical ribs 16 a suspended from both sides of the vertical groove 11 of the peripheral wall portion 12, a pair of vertical ribs 16 b is also provided in the rear half portion 19 of the top wall portion 13. As a result, in addition to the direction and inclination of the cap 10 around the axis of the pump head 1 with respect to the pump head 1, the position of the cap is also corrected when there is a deviation in the front-rear direction (left-right direction in FIG. 5). The attachment of the cap is easy and reliable. From the viewpoint of enhancing the function as a guide in the front-rear direction, as shown in the figure, the inner ends (axis side ends in the plan view) of the four vertical ribs 16a and 16b are arranged on the same circumference coaxial with the axis. It is preferable to do.

FIG. 6 shows another embodiment according to the present invention. In this embodiment, as in the embodiment shown in FIG. 5, two pairs of vertical ribs 16 a and 16 b are provided, and the pair of vertical ribs 16 a suspended from the front half portion 18 of the top wall portion 13 is substantially parallel to the nozzle 13. Is arranged. Thereby, the inclination of the axis line by the vertical rib 16a can be corrected more accurately.

  Further, in this embodiment, the lower end 20b of the vertical rib 16b of the rear half portion 19 is arranged below the lower end 20a of the vertical rib 16a of the front half portion 18. By adopting such an arrangement, the displacement of the cap 10 in the front-rear direction is first corrected by the vertical ribs 16b of the rear half 19, and then the inclination of the axis is corrected by the vertical ribs 16a of the front half 18.

  The width of the vertical ribs 16a and 16b is not particularly limited, and can be appropriately set according to the material of the cap 10 and the required strength.

  Note that the above description shows only a part of the embodiment of the present invention, and these configurations can be combined with each other or various modifications can be made without departing from the gist of the present invention. . For example, although illustration is omitted, the number of the longitudinal ribs may be three or five or more, and the shape of the longitudinal ribs may be tapered with the width decreasing toward the lower end. In the above description, the embodiment has been described in which the upright portion that brings the cap into engagement is provided in the pump head. However, the cap of the present invention can be applied even when the pump head is provided in the container body. it can.

  As is clear from the above description, according to the present invention, although it has a simple structure in which vertical ribs are vertically provided on the inner surface of the top wall portion, it functions as a guide when the cap is attached, so that the content liquid can be reliably transferred. It has become possible to provide a cap for an ejection container that can prevent erroneous leakage.

DESCRIPTION OF SYMBOLS 1 Pump head 3 Nozzle 10 Cap 11 for ejection containers Vertical groove | channel 12 Perimeter wall part 13 Top wall part 14 Nozzle coating | cover part 15 Inner surface 16, 16a, 16b of top wall part Vertical rib 17 Lower end of nozzle 18 First half part 19 of top wall part Top The rear half part 20, 20a, 20b of the wall part The lower end of the vertical rib

Claims (1)

By pushing down the pump head provided at the upper part of the container body, the content liquid contained in the container body is attached to a container that ejects from a nozzle protruding from the front half of the pump head, and the pump head is pushed down. In the cap for the spout container that makes it impossible
The cap surrounds the pump head and has a peripheral wall portion provided with a vertical groove for fitting the nozzle, a top wall portion integrally connected to an upper end portion of the peripheral wall portion, A nozzle covering portion protruding from the side above the vertical groove and covering the nozzle in a mounted state on the container; and a plurality of vertical ribs extending from the inner surface of the top wall portion,
The vertical rib is provided at least near both sides of the vertical groove of the peripheral wall portion,
The vertical rib functions as a guide for the axis of the cap with respect to the axis of the pump head,
The vertical rib extends beyond the lower end of the nozzle in a mounted state on the container ,
A pair of the vertical ribs are further provided in the rear half of the top wall, and the lower ends of the vertical ribs provided in the rear half are arranged below the lower ends of the vertical ribs provided in the front half. Cap for the ejection container.

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